SPINNERET FOR EXTRUDING SELF CRIMPING HOLLOW FIBERS SELF CRIMPING HOLLOW FIBERS AND METHOD FOR PRODUCING SELF CRIMPING HOLLOW FIBERS

摘要

The invention relates to a spinneret (1) for extruding self crimping hollow fibers comprising at least one capillary (18). The at least one capillary (18) has at least one segmented opening (16) which has at least two opening segments (20 22) spaced apart from each other in the cross section wherein a first opening segment (22) of the at least two opening segments (20 22) has a first opening segment width (32) and a second opening segment (20) of the at least two opening segments (20 22) has a second opening segment width (34) wherein the second opening segment width (34) is wider than the first opening segment width (32).